Two part hinge with two hinge pins



Jan. 21, 1969 R. L HORSTMAN 3,422,488

ArTORAIB S- INVENTOR. 905547 A. HORSTMAA/ R. L. HCRSTMAN Jan. 21, 1969 3,422,488

TWO PART HINGE WITH TWO HINGE PINS Sheet Filed March 2, 1967 INVENTOR.

ROBERT L. HORST/I44 BY flai aliam ATTORMEWS.

United States Patent 3,422,488 TWO PART HINGE WITH TWO HINGE PINS Robert L. Horstman, Clarks Summit, Pa., assignor to McKinney Manufacturing Company, Scranton, Pa., a corporation of Pennsylvania Filed Mar. 2, 1967, Ser. No. 619,971 US. Cl. 16-165 8 Claims Int. Cl. Ed 3/06 ABSTRACT OF THE DISCLOSURE A hinge is formed from only two parts, aside from the bearings. One part includes a channel provided with a pair of parallel hinge pins spaced from the inner surface of the channel and connected to its central portion by a longitudinal web. The other part of the hinge includes an open loop having curved inner surfaces fitting against outer arcuate surfaces of the channel. Extending along one edge of the loop is a rocker member provided with a pair of parallel concave recesses positioned to receive both pins at the same time when the hinge is open about 90. The rocker member fits part way around one pin while the hinge is closed and fits part way around the other pin when the hinge is fully open.

Objects of the invention It is among the objects of this invention to provide a hinge which has a pair of integral parallel hinge pins, which can be formed from two extruded parts, which can be an integral part of a metal door frame and jamb, which is tamper proof and which has a pleasing appearance.

In accordance with this invention a pair of parallel hinge pins are disposed in a channel with their axes in a common plane perpendicular to the central longitudinal plane of the channel. The pins are disposed on the opposite sides of that plane in close proximity to it and are spaced from the inner surface of the channel, to which they are connected by a longitudinal web; The space between the inner surface of the channel and the pins forms a pair of slots extending lengthwise of the channel. The outside of the channel has transversely arcuate surfaces extending from its central plane outwardly in opposite directions and each of these surfaces is concentric with the pin on the opposite side of the central plane. A hinge leaf at the open side of the channel extends away from one edge of it. A second hinge leaf is disposed beside the other leaf at the side opposite to the channel, and an open loop extends along an edge of the second leaf and has curved inner surfaces fitting against the arcuate surfaces of the channel. A rocker member extends along the free edge of the loop between it and the hinge leaves and is substantially parallel to them. The rocker member is rigidly connected to the loop, and the side of the rocker member facing the hinge leaves is provided with a pair of spaced parallel recesses having substantially the same radius as the pins and positioned to receive both of them at the same time when the hinge is open about 90. While the hinge is closed, the rocker member fits part way around the pin farthest from the hinge leaves, but while the hinge falls open the rocker member fits part way around the other pin.

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which:

FIG. 1 is a plan view of my hinge closed;

FIG. 2 is a reduced side view of the open hinge, with parts of it broken away;

FIG. 3 is a fragmentary horizontal section taken on the line III-III of FIG. 2, showing the door open 180; and

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FIG. 4 is a similar view showing the door open only Referring to FIG. 1 of the drawings, a pair of binge leaves 1 and 2 are disposed in substantially parallel relation close together with one secured to a door jamb 3 and the other to a door 4. These leaves, and consequently the hinge as a whole, may be any length desired. Thus, the hinge may be only a few inches long, in which case two or more separate hinges would be spaced along the door, or the hinge may be as long as the door so that only one hinge is required.

The hinge leaves project a short distance from one side of the door. Integrally joined to the projecting edge of leaf 1 is a channel 6, as shown in FIG. 4, the central longitudinal plane 77 of which is substantially parallel to the leaf. This channel is disposed at one side of the general plane of the leaves. In the drawings, it is shown overlapping the door jamb. Disposed in the channel is a pair of parallel hinge pins 8 and 9 that have their axes in a common plane perpendicular to the central plane 77 of the channel. The pins are disposed on the opposite sides of the latter plane close to it and are spaced from the inner surface of the channel. The pins are integrally connected to the central portion of the channel by a longitudinal web .10. The space between the inner surface of the channel and the pins forms a pair of transversely arcuate slots 11 and 12 that extend lengthwiseof the channel.

The outside of the channel has transversely arcuate surfaces 14 and 15 extending from its central plane outwardly in opposite directions. One of these surfaces, 14, is concentric with the pin 9 on the other side of the central plane, and the other surface 15 is concentric with the other pin 8. Extending along the projecting edge of the other hinge leaf 2 is an open loop 17 that has curved inner surfaces 18 fitting against the arcuate outer surfaces 14 and 15 of the channel while the hinge is closed.

Rigidly connected to the free edge of the loop is a rocker member 20 that extends along that edge between it and the hinge leaves and substantially parallel to the latter. The side of the rocker member facing the hinge leaves is provided with a pair of spaced parallel concave recesses 2.1 and 22 having substantially the same radius as said pins. While the hinge is closed as in FIG. 1, the curved inner side of the rocker member farthest from the jamb is disposed in and substantially fills the slot 11 in the channel. At that time the rocker member fits part way around pin 8. The rest of the rocker member is disposed between that pin and the door jamb. In other words, the position and construction of the rocker member is such that when the hinge is opened about 90, as shown in FIG. 4, the two recesses in the rocker member will receive the two pins. The position of the rocker member relative to the pins when the hinge is closed has just been explained. When the hinge is fully open, the curved outer side of the rocker member enters the arcuate slot 12, and the adjoining pin 9 fits in recess 22 of the rocker member.

It will be seen in FIG. 4 that :as the door is opened, one arcuate surface 18 of the loop will slide around the adjoining arcuate surface 15 of the channel until the outer edge 23 of the loop surface reaches the line of junction of the two arcuate surfaces of the channel. At that moment the rocker member 20 fits snugly around both pins. During this 90 opening of the door, the inner half of the rocker member rotates around the outer pin 8 until the outer recess 22 fits around the other pin. Upon further opening of the door, the edge 23 of the curved loop surface slides along the other arcuate surface 14 of the channel as indicated in dotted lines in FIG. 4, while the outer half of the rocker member rotates around pin 9 until it comes to rest in slot 12 as shown in FIG. 3. It will be seen that during the first 90 degrees of opening the moving part of the hinge pivots around the outer pin 8, while during the next 90 degrees it pivots around the inner pin 9. The rocker member is maintained in contact with one or the other, or both, of the pins at all times because edge 23 of the curved loop surface engages the outer surface of the channel until the center part of the rocker member has entered some distance into slot 12.

The jamb hinge leaf 1 is offset outwardly, relative to the channel 6 to provide an offset or space for accommodating the free edge portion of the loop adjoining the rocker member when the hinge is opened substantially 180, as shown in FIG. 3.

In order to prevent loop 17 from sliding down on the channel until the door rests on the floor, thrust bearings are mounted in the hinge. To accommodate these bearings, the channel 6 and pins are made shorter than the loop by spacing the ends of the channel and pins inwardly from the ends of the leaves, as shown in FIG. 2. The loop is the same length as the leaves. A gap is thus formed in each end of the hinge member, that is fastened to the door jamb. Disposed in each of these gaps is one of the thrust bearings. Each bearing is a block 26 of any suitable bearing material, such as nylon or Teflon, which is shaped to fit snugly within the outer end portion of the loop and in the recesses in the rocker member 20. The bearings extend across and completely cover the adjoining ends of the channel and pins, as shown in FIG. 1. The bearings can be held in place in any suitable manner, such as by pins 27 driven through holes in the loop and bearings. The upper bearing, therefore, will seat on top of the pins and chanel and be supported by them. On the other hand, if the door were fastened to hinge leaf 1, then the lower bearing would support the pins and channel. In either case, the bearings also serve as end caps that close the ends of the loop and form fiat ends for the portion of the hinge projecting from the door and jamb. In a long hinge, one or more intermediate bearings may be used by forming gaps in the channel and pins between their ends to receive the bearings.

This hinge has many advantages. The two parts can be extruded in any desired length and then cut up into shorter lengths. By eliminating the separate hinge pin that forms a part of practically all hinges, manufacturing cost can be reduced and the pins can be extruded along with the part that forms the channel. On screen and storm doors having metal frames and jambs, the two parts of the hinge can be integral with the frame and jamb extrusions, thereby eliminating the manufacture and installation of a separate hinge. When made as a full length door hinge, it provides a tamper proof hinge that rotates with far less effort than standard hinges. This ease of operation is a distinct advantage in the case of doors having automatic closers, because standard hinges frequently operate with so much friction that the door closers cannot function efficiently. This hinge, when made the full length of the door opening, also can serve as a seal for the hinged side of the door Where that is desirable, such as where it is necessary to exclude dust from a room. Finally, a doorlength hinge like this one presents a single, smooth, unbroken line of pleasing appearance and can be finished or painted to blend with the adjoining wall and door.

I claim:

1. A two part hinge comprising a channel, a pair of parallel hinge pins disposed in the channel with their axes in a common plane perpendicular to the central longitudinal plane of the channel, the pins being disposed on the opposite sides of said longitudinal plane is close proximity thereto and spaced from the inner surface of the channel, a longitudinal web connecting the pins to the central portion of the channel, the space between the inner surface of the channel and the pins forming a pair of slots extending lengthwise of the channel, the outside of the channel having transversely arcuate surfaces extending from said central plane outwardly in opposite directions, each of said surfaces being concentric with the pin on the opposite side of said central plane, a hinge leaf at the open side of the channel extending away from one edge thereof substantially parallel to said central plane, a se ond hinge leaf beside the other leaf at the side opposite to said channel, an open loop extending along an edge of the second leaf and having curved inner surfaces fitting against said arcuate surfaces, and a rocker member extending along the free edge of the loop between it and the hinge leaves and substantially parallel to the leaves, said free edge being rigidly connected to the rocker member, the side of the rocker member facing the hinge leaves being provided with a pair of spaced parallel concave recesses having substantially the same radius as said pins and positioned to receive both pins at the same time when the hinge is open about and the sides of the rocker member being shaped to enter sa-id slots as the hinge is opened and closed, whereby the rocker member fits part way around the pin farthest from the hinge leaves while the hinge is closed and fits part way around the other pin while the hinge is fully open.

2. A two-part hinge according to claim 1, in which the curved inner surface of said loop that adjoins the second hinge leaf :has an outer edge that slides along said arcuate surfaces as the hinge is opened and closed.

3. A two-part hinge according to claim 1, in which the first-mentioned hinge leaf is offset outwardly relative to said channel to provide a space for receiving the free edge portion of the loop when the hinge is opened substantially 180.

4. A two-part hinge according to claim 1, in which each of said slots has .parallel arcuate side walls concentric with the adjoining pin, and said sides of the rocker member being formed to substantially fill said slots when they enter them.

5. A two-part hinge according to claim 1, in which said loop projects lengthwise beyond said channel and pins, and a thrust bearing is rigidly mounted in the projecting portion of the loop and engages the adjoining end of the channel.

6. A two-part hinge according to claim 1, in which the opposite ends of said channel and pins are spaced inwardly from the ends of the leaves and loop, and thrust bearings are rigidly mounted in the ends of the loop and overlie the ends of the channel and pins.

7. A two-part hinge according to claim 1, in which said parts are metal extrusions, the pins and one hinge leaf being integrally joined to the channel, and the rocker member and other hinge leaf being integrally joined to said loop.

8. A two-part hinge according to claim 1, in which the curved inner surface of said loop that adjoins the second hinge leaf has an outer edge that slides along said arcuate surfaces as the hinge is opened and closed, said loop projects lengthwise beyond both ends of said channel and pins, and thrust bearings are rigidly mounted in the projecting portions of the loop and engage the adjoining ends of the channel.

References Cited UNITED STATES PATENTS 2/1966 Hirashiki 16-168 10/1967 Dickerson et al 16l69 U.S. Cl. X.R. 

